September weather forecastDullu, Nepal

September

Weather in September

September, the first month of the autumn in Dullu, is also a moderately hot month, with temperature in the range of an average high of 28.5°C (83.3°F) and an average low of 19.3°C (66.7°F).

Temperature

The commencement of September brings an average high-temperature of a still warm 28.5°C (83.3°F), marking an inconsequential divergence from August. Dullu records an average temperature drop to an enjoyable 19.3°C (66.7°F) in September.

Heat index

The average heat index in September is calculated to be a tropical 33°C (91.4°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

The average relative humidity in September is 80%.

Rainfall

In Dullu, during September, the rain falls for 24.6 days and regularly aggregates up to 163mm (6.42") of precipitation. Throughout the year, there are 146.7 rainfall days, and 1028mm (40.47") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 5:56 am and sunset at 6:40 pm. On the last day of September, sunrise is at 6:11 am and sunset at 6:05 pm +0545.

Sunshine

In Dullu, the average sunshine in September is 9.3h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: In September, the maximum UV index of 6 suggests these recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

September temperatures vary between a high-temperature of 28.5°C (83.3°F) and a low-temperature of 19.3°C (66.7°F). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 33°C (91.4°F).

In September, the average relative humidity is 80%.

In September, the rain falls for 24.6 days. Throughout September, 163mm (6.42") of precipitation is accumulated.

The average day length in September is 12h and 20min.

On the first day of September, sunrise is at 5:56 am and sunset at 6:40 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 6:05 pm +0545.

In Dullu, the average sunshine duration in September is 9.3h.

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Dullu, Nepal

  • Average high temperature in September: 28.5°C

The warmest month (with the highest average high temperature) is May (34.6°C).
The month with the lowest average high temperature is January (18.8°C).

  • Average low temperature in September: 19.3°C

The month with the highest average low temperature is June (22.9°C).
The coldest month (with the lowest average low temperature) is January (5.5°C).

Average pressure in September
Dullu, Nepal

  • Average pressure in September: 1008.9mbar

The month with the highest atmospheric pressure is January (1018.4mbar).
The month with the lowest atmospheric pressure is July (1003.5mbar).

Average wind speed in September
Dullu, Nepal

  • Average wind speed in September: 4.7km/h

The windiest month (with the highest average wind speed) is April (9km/h).
The calmest month (with the lowest average wind speed) is August (4.6km/h).

Average humidity in September
Dullu, Nepal

  • Average humidity in September: 80%

The month with the highest relative humidity is August (82%).
The month with the lowest relative humidity is April (29%).

Average rainfall in September
Dullu, Nepal

  • Average rainfall in September: 163mm

The wettest month (with the highest rainfall) is July (338mm).
The driest month (with the least rainfall) is November (1mm).

Average rainfall days in September
Dullu, Nepal

  • Average rainfall days in September: 24.6 days

The month with the highest number of rainy days is August (29.7 days).
The month with the least rainy days is November (1 days).

Average daylight in September /
Average sunshine in September
Dullu, Nepal

  • Average daylight in September: 12h and 18min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 9h and 18min

The month with the most sunshine is May (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 7h and 12min).

Average sunshine days in September
Dullu, Nepal

  • Average sunshine days in September: 2 days

The month with the most sunshine days is December (28.7 days).
The month with the least sunshine days is August (1 days).

Average UV index in September
Dullu, Nepal

  • Average UV index in September: 6

The months with the highest UV index are April, May and June (UV index 7).
The months with the lowest UV index are January, November and December (UV index 4).

Average cloud cover in September
Dullu, Nepal

  • Average cloud cover in September: 33

The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is November (Cloud cover 5).

Average visibility in September
Dullu, Nepal

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).